Mud jack sleeve for highways and the like



Oct, 31, 1933. E. J, AYLWARD 1,933,469

Filed May 2s. 1952 f1 Homey CII Patented Oct.31, 1933 PATENT loFFIcE MUD JACK SLEEVE THE FOR

HIGHWAYS AND LIKE Edmund J. Aylward, Neenah, Wis. Application May 26, 1932. Serial No. 613,713

1 Claim.

This invention relates to means for facilitating the pumping of a mixture of mud, sand and cement or the like under the surface material of a highway, or a sidewalk or the like,-v/here the soil below said surface material has sunken or has washed away, or where the highway, sidewalk or the like has raised and it is desirable to ll the existing void, the general object of the invention being to provide a sleeve which is embedded in the surface material and passing through the same so that the lling material can be readily pumped through the surface material without necessitating the digging up of portions of the surface material to form a hole in which the lling material is pumped.

Another object of the invention is to provide a cap for the sleeve which is fiush with the top surface of the surface material so that wheels of vehicles and the like can readily pass over the same. I

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawing and specifically pointed out in the appended claim.

In describing the inventionin detail, reference will be had to the accompanying drawing wherein like characters denote like or corresponding parts throughout the several views, `and in which:- Y

Figure l is a portion of a highway, street or the like showing the invention therein. Fig` 2 is a fragmentary enlarged plan View showing the invention located in the surface material of a street or the like. f

Fig. 3 is a section on line 3-'-3' of Fig. 2.

Fig. 4 is asimilar View but showing a modified closure of the sleeve.

In these views, the letter A indicates the surface forming material, such as concrete or the like, of a street, highway, orsidewalk or floor, and the letter B indicates a sleeve whichrpasse's through a portion of this material, with its upper end flush with the top surface of the material.

This sleeve is formed with an enlarged upper end 1 which provides a shoulder 2 at its junction with the major portion of the sleeve for supporting a cap or closure 3. Any suitable means canv be used for holding the cap in the part 1 or it may be held in place by its own weight. Fig. 4 shows the cap 3 as threaded into the part 1 of the sleeve, as shown at 4 with tool receiving sockets 5 formed in the cap for removing the same.

It will of course be understood that the sleeves are placed in the surface material at those portions of the street or highway or the like where there is a liability'of the soil sinking or being washed away, such as a fill or the like.

As is well known, when this occurs, a hole is dug in the surface material and the mixture of cement, mud and sand or the like is pumpedy through the hole under the surface material to lill the space below said surface material.

After Vthe material has beenl the hole made in the surface material must bek lled. However, with this invention it is simplynecessary to remove the closure and then pump the material thru the sleeve and then the closure is put in place, and if further is to be pumped, this can be readily done.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes kmay be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claim.

Having thus described my invention, what I 85 claim as new isz- For facilitating the pumping of lling material under surface material of a highway, street or the like, where the soil below such surface material has been washed away or has sunk, or where the surface material has raised and it is desirable to lill the existing void, a pavement having anchored therein as a permanent part thereof a tubular member passing through the pavement, said tubular member having both ends 95 open and the lower end extending into the substructure below the pavement, and a closure for the upper end of said tubular member, said upper end of the tubular member and the upper face of the-closure being flush with the upper `surface of the pavement.

EDMUND J. AYLWARD.

pumped into place material 

